Combined strainer and valve.



PATITENIED FEB. 21, 1905.

G. U. MERRILL. COMBINED STRAINEB. AND VALVE.

APPLICATION FILED AUG. 2. 1904.

2 SHEETS-SHEET 1.

ATT ORNYEYSV PATENTED FEB. 21, 1905.

G. U. MERRILL. COMBINED STRAINER AND VALVE.

APPLICATION FILED AUG. 2, 1904.

2 SHEETS-SHEET 2.

III-ll IllIlll ATTORNEYS- Patented February 21, 1905.

PATENT OEEIcE.

GRANT U. MERRILL, OF PATERSON, NEW JERSEY.

COMBINED STRAINER AND VALVE. c

SPECIFICATION forming part of Letters Patent No. 782,866, dated February21, 1905.

Application filed August 2, 1904. Serial No. 219,190

1'0 all whom it may concern.-

Be it known that I, GRANT U. MERRILL, a citizen of the United States,residing at Paterson, in the county of Passaic and State of New Jersey,have invented certain new and useful Improvements in a Combined Strainerand Valve; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters andfigures of reference marked thereon, which form a part of thisspecification.

This invention relates to apparatus for filtering or straining waterflowing from raceways and other sources of water-supply, andparticularly to that type of such apparatus illustrated in my UnitedStates Letters Patent No. 67 8,001, having two strainers and separatewater-flow-controlling means therefor, so that the water-flow maycontinue uninterrupted through one though it is cut off through theother strainer while the latter is removed for cleaning.

The present invention consists in certain improvements on that patentedto me as aforesaid, having principally in view to simplify themanufacture and cheapen the cost of the same, to facilitate theassembling of the various parts, both initially and when the apparatusis in use, as in cleaning the strainers or making repairs, to betterinsure against leakage at such points where joints are necessarilyformed, to facilitate the operation of its moving parts, and increasethe efliciency generally.

I have fully illustrated my invention in the accompanying drawings,wherein Figure 1 is a front view of the apparatus, a portion of one. ofthe coverplates being broken away to show the interior of the apparatus.Fig. 2 is a side view; Fig. 3, an enlarged sectional view taken inthe.plane of certain valve-controlling shafts; Fig. 4, a sectional viewtaken at right angles to the plane in which the section in Fig. 3 istaken, and

Figs. 5 and 6 are views of certain details.

a is a casing open at both ends and divided by a longitudinal centralpartition 7), whereby two passage-ways 0 are formed in said casing. Thecasing in the present instance instead of being oval in form, as in mypatent aforesaid, is substantially rectangular, and it has each endformed with a flange (Z and planed off smooth, as at 6. Against the faceof each flange (Z is bolted the flange f of a hollow head 9, having acentral opening 71 whereby communication is had between the interior ofthe apparatus and certain pipes 2', which are bolted to said heads g andone of which leads the water to be filtered into the appararatus and theother of which carries off the water therefrom after it has beenfiltered.

The front wall 1' of the casing a is formed with openings h, eachleading into one of the passage-ways a. Z represents removablecover-plates which normally close said openings and each of which isclamped against the face of said wall of the casing by means ofset-screws m, mounted in pairs of bars a, which bridge the flanges (Z ofthe casing, said set-screws being adapted to take against thecover-plates, preferably at the intersections of certain integralreinforcing-ribs 0', formed on the outer faces of said cover-plates. Thebars a are secured in pairs of lugs 1), projecting from the flanges (Zby removable pins q. Either of these pins for each bar may be removedand the other used as a temporary pivotal support for the bar, or bothpins may be removed, so that the bar may be completely detached from thecasing, as will be obvious.

r is a packing arranged between each coverplate and the outer face ofthe wall of the casing.

In the passage-ways c are arranged wiremesh or other perforated form ofstrainers 8, provided with supporting-flanges t. a designates pairs oflips formed internally on the three permanent walls of each passageway0. There are two sets of these lips, one near each end of eachpassage-way, each set being adapted to receive the flange of a strainer,and thus support the latter. The arrangement permits the strainers toeither stand in the position shown in Fig. 1 or be inverted, accordingto the direction of the water-flow.

'0 designates slide-valves which work against the planed faces 0 of thecasing and are movable transversely thereof to open up the communicationthrough the casing by means of one passage-way while closing off theother. Each valve is provided with a pair of thrustblocks to, projectingoutwardly and having their ends formed with double bevels or inclines wm. g, opposite each passage-way 0, are bolted fixed thrust-blocks y,having inclined faces .2. When the valve is moved to close thecommunication between one of the passage-ways 0 and the interior of thehead g, the inclined surfaces :0 or :0 (according to the direction inwhich the valve is moved) of the thrust-blocks w will take against theinclined surfaces .2 of the thrust-block fl/ and force the valve againstits seat on the planed surface a, thus making the joint between theblock and said surface tight.

1 designates threaded shafts each of which is journaled in a head g,extending lengthwise thereof. The threaded portion of each shaft isreceived by a threaded traveler or block 2, recessed at the sides, so asto receive the thrustblocks w, and thus permit the valve 4; to haveslight movement transversely of the shaft. Near one end each shaft isformed with a rigid shoulder 3, which takes against the outside face ofthe head g and prevents the inward thrust of the shaft. From the head gboth sides of each shaft 1 project two threaded studs 4, over which andthe shaft is slipped the female member 5 of a gland which is held inplace on the head 9 by nuts 6, screwed on said studs. 7 is the malemember of the gland acting to retain in the member 5 the packing 8 andbeing held in place in member 5 by nuts 9, screwed on said studs. Theend of each shaft 1 is squared to receive a handwheel lO'for rotatingthe same.

In use the valves 2) normally stand so that they close one of thepassage-ways 0 and leave the other open. The water in passing throughthe passage-way c is cleared of refuse by the basket 5 therein. \Vhen itis necessary to remove the refuse from this basket, the valves are movedby their shafts 1 to close off the passage-way aforesaid and permit thewater to run through the other passage-way, whereupon the set-screws mand pins (1 can be released, so that the bars a can be detached andpermit the removal of the cover-plate Z. 11 designates a bail attachedto each basket, whereby to facilitate the removal of the latter from thecasing 11.

The arrangement and construction throughout is such that convertibilityand interchangeability of parts are prime features of the apparatus.Thusa reduction in the cost of manufacture and facility of assemblageaccrue, and the apparatus can be made to adapt itself to variousconditions attending installation. The body part or casing a is regularin form, and thus more shapely to handle and install, and by having 1tsend faces (2 planed To the inside face of each headflat adapts itself atthese points both for good contact with the heads and the proper seating of the valves.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The combination of a casing having a plurality of substantiallyparallel passageways therethrough, hollow heads removably attached tothe ends of said casing over the ends of said passage-ways, said headsbeing adapted to afford communication between said passage-ways and theends of the pipe system in which the apparatus is installed, a shaftarranged in each head transversely of said passage-ways, valves inclosedone in each head between said shaft and said casing ends and adapted toclose off one passage-way while leaving the other free, and operativeconnecting means between each valve and shaft, substantially asdescribed.

2. The combination of a casing having a plurality of substantiallyparallel passageways therethrough and having its ends at the ends ofsaid passage-ways planed ofi' smooth,

hollow heads secured agalnst said planed-off ends of the casing, saidheads being adapted to afford communication between said passageways andthe ends of the pipe system in which the apparatus is installed, valvesinclosed one in each head and adapted to seat against said planed-offends of the casing to close off one passage-way while leaving the otherfree, and means for operating said valves, substantially as described.

3. The combination of a hollow body having a plurality of substantiallyparallel passageways therethrough, a valve seat disposed transversely ateach end of said passage-Ways, a valve adapted to slide on eachvalve-seat to close off communication through one passageway whileleaving the other free, a fixed portion of said body being disposedopposite each end of each passage-way. thrust devices disposed on saidfixed portion, and another thrust device arranged on each valve andimpingeable against the one or the other of said first-named thrustdevices to force the valve against its seat at the closing off of apassage-way thereby, and means for moving said valves, substantially asdescribed.

4. The combination of a hollow body having a plurality of substantiallyparallel passageways therethrough, a valve seat disposed transversely ateach end of said passage-ways, a valve adapted to slide on eachvalve-seat to close off communication through one passageway Whileleaving the other free, rotary threaded shafts journaled in said bodyand each having a shoulder taking against the outside thereof, athreaded block receiving each shaft and operatively connected to one ofthe valves, and glands for said shafts each comprising a female membersecured to said body outside thereof and taking against said shoulderand jecting from said valve, and a threaded block penetrated and engagedby said shaft, said thrust device being guided in said block, sub- 5stantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this30th day of July, 1904.

GRANT U. MERRILL.

Witnesses:

JOHN W. STEWARD, ROBERT J. POLLI'IT.

